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  #1  
Old 06-01-2010, 04:32 AM
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99.5 HPOP or IPC

Hey all,

here is what happend. I would be driving, and the truck would just surge and then throw a Service engine soon light. After a while of driving, the light would turn off and drive fine. Sometimes it would surge again and throw out another SES. Got it scanned and got a p1280 and P1249 code. Checked the IPC sensor and found some oil on it, so I replaced it. The truck did it a few other times. I checked oil, it had some bubbles in it, so I changed the oil and filter. I used a Motorcraft filter and Motorcraft Oil (15-40). Was driving it last night, and it did it again. Need to get it scanned for codes again, but am sure it will be the p1280 code.

I never know when it will happen, and I know the shop will not let me take thier scanner to get data for a day. (the owner is nice enough to scan the truck for free when ever I want, but he needs it for his shop)

Ay idea what to chase next? Funds are very limited right now, and would love to get the truck running right for my wife before I leave for 18 - 20 weeks.

Sorry for the book.
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Old 06-01-2010, 05:50 AM
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IPC? I think it would more likely be the IPR than the HPOP. It may be something as simple as the o-ring or the retaining nut. I am going to link to sites that I think are good reads:

New Page 0

Diesel Technician Society

On the last site, scroll down to the bottom and open the Technician's High Pressure Pump Guide for the 7.3
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Old 06-01-2010, 06:01 AM
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thanks for the info, I will have to take a look at it when the kids are not so wild.... like right now.....

Where is the IRP? 99.5 (late) engine.

Thanks for the help.
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Old 06-01-2010, 06:35 AM
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It is behind the reservoir, on the HPOP - here is a link with a good picture:

http://www.aeswave.com/images/Produc...20sample73.pdf
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Old 06-01-2010, 06:42 AM
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My truck did this 2 years ago 99.5 no oil in the ICP but the ICP was bad replaced and was fine. I found the problem by doing the 10k mod and drove it that way for a while never acted up. reaplaced the ICP did not put 10k back truck ran like a top.
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  #6  
Old 06-01-2010, 06:59 AM
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thanks,

Now I know where and what to tear down tonight, if I can get new orings.....

I think it is worth a shot, if not I know that is not a problem.

Thanks for the ideas and help. I was running out of ideas and time.
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Old 06-02-2010, 04:16 AM
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question about IRP

any tips about the removal of the IRP? By bro said something about a screw, and there is something that can be put in backwords, and the truck will not run.

is the removal easy, once you get other stuff out of the way. Just unscrew the irp?

Been busy with the kids last few days at school and work. so have not been able to pull it out yet, or remove the other stuff around it to see anything.
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Old 06-02-2010, 04:53 AM
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  #9  
Old 06-02-2010, 06:56 AM
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thanks for the help, read threw some of the pages and found out what needs to be done... not too hard... Guess I will try it tonight if I have time.
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